| Institution: | 1. Research Unit, Galdakao-Usansolo Hospital, Galdakao, Bizkaia, Spain;2. Department of Applied Mathematics, Statistics and Operational Research, University of the Basque Country UPV/EHU, Leioa, Spain;3. Digestive Service, Basurto University Hospital, Bilbao, Bizkaia, Spain;4. Psychology Department of Personality, Assessment and Treatment, University of Deusto, Bilbao, Bizkaia, Spain;5. Department of Psychiatry, Galdakao-Usansolo Hospital, Galdakao, Bizkaia, Spain;6. Digestive Service, Galdakao-Usansolo Hospital, Bilbao, Bizkaia, Spain;7. Research Unit, Basurto University Hospital, Bilbao, Bizkaia, Spain;8. Health Services Research on Chronic Patients Network (REDISSEC), Bilbao, Bizkaia, Spain;1. Department of Psychosomatic Medicine and Psychotherapy, University Medical Center Hamburg-Eppendorf and Schön Klinik Hamburg-Eilbek;2. City University, London, United Kingdom;3. Median Kinzigtal-Klinik, Bad Soden-Salmünster, Germany;4. Schön Klinik Bad Bramstedt, Bad Bramstedt, Germany;1. Ambulatory Health Care Center Pain Medicine Saarbrücken — St. Johann, Saarbrücken, Germany;2. Department Psychosomatic Medicine and Psychotherapy, Technische Universität München, München, Germany;3. Department of Anesthesiology, Intensive Care Medicine and Pain Medicine, Universitätsklinikum des Saarlandes, Homburg/Saar, Germany;4. National Data Bank for Rheumatic Diseases, Wichita, KS, United States;5. University of Kansas School of Medicine, Wichita, KS, United States;1. Research Unit for General Practice, Department of Public Health, Aarhus University, Denmark;2. Research Clinic for Functional Disorders and Psychosomatics, Aarhus University Hospital, Denmark |
